Figure 9. Correlation analysis of genes in patients with ccRCC. In the high-risk group, the expression levels of CTLA4 (A), LAG3 (B), PDCD1 (C), GAL9 (D), and TIGIT (E) increased. Although the expression level of PDCD1LG2 (F) increased, it was not statistically significant. CD274 (G) The expression level of HAVCR2 (H) decreased.